Mellanox ConnectX-4 is incompatible with AMD Ryzen 9 5950X and CentOS

Infrastructure & Networking Software And Drivers
1

It would appear that no matter which way I slice and dice it, the Mellanox ConnectX-4 card (MCX456A-ECAT) is incompatible with an AMD Ryzen 9 5950X and CentOS (I’ve tried both 7.7.1908 and 7.9.2009).

My MCX456A-ECAT has already been updated to the latest firmware and I am using MLNX_OFED_LINUX-5.5.1.0.3.2-rhel7.9-x86_64 (which is the latest drivers available for it) and it still results in problems.

If I use the “inbox” drivers, it results in a kernel panic (and I’ve already tried reaching out to the CentOS team about it).

If I try to use the MLNX OFED drivers, openibd fails to restart after the installation of the driver or fails to start properly when the system is rebooted.

2

Hi Chan

With limited info, it’s hard to give a right answer.

i’d like you to open a CASE and contact a supporter.

Meanwhile, could you please double check if there are some errors

  1. #dmesg
  2. /var/log/messges

  3. /etc/init.d/openibd status

could you please re-install OFED and collect below and open a CASE with thoes?

  1. OFED installation logs
  2. ConnectX-4 snapshot file

  3. /etc/init.d/openibd status

  4. #dmesg

Thanks